Mine detail: Eureka

Previously called 'Flagstaff'

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Location

Lat / long:

38.7671, -122.76524

Resource(M)

Primary:	Mercury
Ore:	Cinnabar, Mercury, Metacinnabar
Gangue:	Quartz
Discovery year:	1860

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host type:	Serpentinite
Structure:	Serpentine - Sandstone Contact
Alteration processes:	Silica Carbonate Alteration Of Serpentine, Bleaching Of Sandstone

References

MRDS	M055705
DEP	10040830
Reference	{Deposit:: HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252}{Deposit:: BAILEY, E. H., 1946, QUICKSILVER DEPOSITS OF THE WESTERN MAYACMAS DISTRICT, SONOMA COUNTY, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 42, P. 199 - 230}{Deposit:: BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.}{Deposit:: HONKE, M.T., JR. AND VER PLANCK, W.E., JR., 1950, MINES AND MINERAL RESOURCES OF SONOMA COUNTY CALIFORNIA: CJMG, V. 46, P. 98-105}{Deposit:: 5) RANSOME A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG, V. 35, P. 353-486}{Production:: HOLMES, 1965}
Reporter	Peterson, Jocelyn A.